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Finding the Fourth Proportional to 425,512.20, 637,612.20 and 369,087.60

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Solution

The fourth proportional to 425,512.20, 637,612.20 and 369,087.60 is: 553,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,512.20 : 637,612.20 = 369,087.60 : x
  2. Step 2: Convert to fraction form
    425,512.20/637,612.20 = 369,087.60/x
  3. Step 3: Cross multiply
    425,512.20x = 637,612.20 × 369,087.60
  4. Step 4: Simplify right side
    425,512.20x = 235,334,756,628.72
  5. Step 5: Solve for x
    x = 235,334,756,628.72/425,512.20
  6. Step 6: Final answer
    x = 553,062.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.